ObservabilityGramian (Built-in Mathematica Symbol)

ObservabilityGramian[ss] gives the observability Gramian of the StateSpaceModel object ss.

PossibleZeroQ (Built-in Mathematica Symbol)

PossibleZeroQ[expr] gives True if basic symbolic and numerical methods suggest that expr has value zero, and gives False otherwise.

False (Built-in Mathematica Symbol)

False is the symbol for the Boolean value false.

Algebra` Upgrading Information (Mathematica Compatibility Guide)

Algebra`PolynomialContinuedFractions` (Mathematica Compatibility Information)

Algebra`PolynomialContinuedFractions` was available as an add-on package in previous versions of Mathematica and is now available on the web at ...

Algebra`ReIm` (Mathematica Compatibility Information)

Algebra`ReIm` was available as an add-on package in previous versions of Mathematica and is now available on the web at library.wolfram.com/infocenter/MathSource/6759.

Mathematics and Algorithms (Mathematica Overview)

"How to" Topics Numbers Algebraic Calculations

Algebra`InequalitySolve` (Mathematica Compatibility Information)

The built-in function Reduce provides the functionality previously found in Algebra`InequalitySolve`.

Algebra`Quaternions` (Mathematica Compatibility Information)

All the functionality in Algebra`Quaternions` is available in the newly created Quaternions Package.

And (Built-in Mathematica Symbol)

e_1 && e_2 && ... is the logical AND function. It evaluates its arguments in order, giving False immediately if any of them are False, and True if they are all True.